CN102129583B - Method and device for deactivating ultrahigh frequency passive electronic tag - Google Patents
Method and device for deactivating ultrahigh frequency passive electronic tag Download PDFInfo
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- CN102129583B CN102129583B CN 201110044511 CN201110044511A CN102129583B CN 102129583 B CN102129583 B CN 102129583B CN 201110044511 CN201110044511 CN 201110044511 CN 201110044511 A CN201110044511 A CN 201110044511A CN 102129583 B CN102129583 B CN 102129583B
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Abstract
The invention discloses a method and a device for deactivating ultrahigh frequency passive electronic tag, wherein the method comprises the steps that: upon the end of life cycle, an ultrahigh frequency passive electronic tag receives a deactivating order sent by a reader and returns to a reception response to the reader, wherein the deactivating order carries an indicating parameter for the notification of data erasing, and the reception response carries a time parameter; after receiving the reception response, the reader sends a continuous carrier wave with corresponding duration to the electronic tag according to the time parameter in the reception response; the electronic tag receives the continuous carrier wave and erases the data according to the indicating parameter; and the electronic tag is subjected to deactivation according to the deactivating order. The method and the device can guarantee after the electronic tag is deactivated that the data in the electronic tag is totally erased and does not exist in a nonvolatile memory, thereby thoroughly avoiding hidden safety hazard and promoting the safety of the electronic tag to a large extent.
Description
Technical field
The present invention relates to the REID field, relate in particular to ultra-high-frequency passive electronic tag ablation method and device.
Background technology
In field of radio frequency identification, ultra-high-frequency passive electronic tag (calling electronic tag in the following text) receives energy of electromagnetic field by antenna, gives chip power supply.When electronic tag finishes in life cycle, with electronic tag deactivation (non-physical damage), electronic tag will no longer respond any order of reader by deactivation command, and electronic tag is invalid.The implementation method of electronic tag deactivation is with the set of the inner non-volatility memorizer deactivation of electronic tag zone bit, reads the value of this non-volatility memorizer when electronic tag powers on, if be set, electronic tag enters inactivated state immediately.
Because the requirement of electronic tag low-power consumption, non-volatility memorizer can not be in time with the data erase in the electronic tag, and after the electronic tag deactivation, the data in the electronic tag also are present in the non-volatility memorizer, have potential safety hazard.
Summary of the invention
The embodiment of the invention provides a kind of ultra-high-frequency passive electronic tag ablation method, and in order to stop potential safety hazard, this method comprises:
The ultra-high-frequency passive electronic tag receives the deactivation command that reader sends when life cycle finishes, return to described reader and receive response, and wherein, described deactivation command is carried the indication parameter of notice obliterated data, and time parameter is carried in described reception response;
Described reader sends the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after receiving described reception response;
Described electronic tag receives described continuous carrier, according to described indication parameter obliterated data;
Described electronic tag carries out inactivation treatment according to described deactivation command.
The embodiment of the invention provides a kind of reader, and in order to stop potential safety hazard, this reader comprises:
Generation module is used for generating deactivation command, and described deactivation command is carried the indication parameter of notice obliterated data;
First sending module is used for sending described deactivation command when the life cycle of ultra-high-frequency passive electronic tag finishes;
First receiver module is used for receiving the reception response that described electronic tag returns, and time parameter is carried in described reception response;
Second sending module is used for sending the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after described receiver module receives described reception response.
The embodiment of the invention also provides a kind of ultra-high-frequency passive electronic tag, and in order to stop potential safety hazard, this ultra-high-frequency passive electronic tag comprises:
First receiver module is used for receiving the deactivation command that reader sends when life cycle finishes, and described deactivation command is carried the indication parameter of notice obliterated data;
First sending module is used for returning the reception response to described reader, and time parameter is carried in described reception response;
Second receiver module is used for receiving described reader according to the time parameter of described reception response, the continuous carrier of the corresponding duration of transmission;
Wipe module, be used for according to described indication parameter obliterated data;
The deactivation module is used for carrying out inactivation treatment according to described deactivation command.
The embodiment of the invention also provides a kind of radio-frequency recognition system, and in order to stop potential safety hazard, this radio-frequency recognition system comprises:
Reader is used for sending deactivation command to described electronic tag when the life cycle of ultra-high-frequency passive electronic tag finishes, and described deactivation command is carried the indication parameter of notice obliterated data;
Described electronic tag is used for after receiving described deactivation command, returns to described reader and receives response, and time parameter is carried in described reception response;
Described reader also is used for sending the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after receiving described reception response;
Described electronic tag also is used for receiving described continuous carrier, according to described indication parameter obliterated data; Described electronic tag carries out inactivation treatment according to described deactivation command.
In the embodiment of the invention, the ultra-high-frequency passive electronic tag receives the deactivation command that reader sends when life cycle finishes, and described deactivation command is carried the indication parameter of notice obliterated data; Described electronic tag is according to described indication parameter obliterated data; Described electronic tag carries out inactivation treatment according to described deactivation command; After can making the electronic tag deactivation, the data in the electronic tag are not present in the non-volatility memorizer because being wiped free of, thereby the potential safety hazard of stopping promotes the security performance of electronic tag significantly.Described electronic tag returns the reception response to described reader after receiving described deactivation command, time parameter is carried in described reception response; Described reader sends the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after receiving described reception response; Described electronic tag receives described continuous carrier, and the line data of going forward side by side is wiped; Like this, consult the transmission duration of continuous carrier by reader and electronic tag, can guarantee that electronic tag all wipes all data of inside, further promote the security performance of electronic tag.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the processing flow chart of ultra-high-frequency passive electronic tag ablation method in the embodiment of the invention;
Fig. 2 is an exemplary plot of electronic tag inactivation treatment in the embodiment of the invention;
Fig. 3 is the structural representation of reader in the embodiment of the invention;
Fig. 4 is the structural representation of ultra-high-frequency passive electronic tag in the embodiment of the invention;
Fig. 5 is the structural representation of the radio-frequency recognition system in the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with accompanying drawing the embodiment of the invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
As shown in Figure 1, in the embodiment of the invention, the treatment scheme of ultra-high-frequency passive electronic tag ablation method can comprise:
Can be learnt that by flow process shown in Figure 1 in the embodiment of the invention, the ultra-high-frequency passive electronic tag receives the deactivation command that reader sends when life cycle finishes, described deactivation command is carried the indication parameter of notice obliterated data; Described electronic tag is according to described indication parameter obliterated data; Described electronic tag carries out inactivation treatment according to described deactivation command; After can making the electronic tag deactivation, the data in the electronic tag are not present in the non-volatility memorizer because being wiped free of, thereby the potential safety hazard of stopping promotes the security performance of electronic tag significantly.Described electronic tag returns the reception response to described reader after receiving described deactivation command, time parameter is carried in described reception response; Described reader sends the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after receiving described reception response; Described electronic tag receives described continuous carrier, and the line data of going forward side by side is wiped; Like this, consult the transmission duration of continuous carrier by reader and electronic tag, can guarantee that electronic tag all wipes all data of inside, further promote the security performance of electronic tag.
Because electronic tag is passive device, therefore when carrying out data erase according to the indication parameter in the deactivation command, can send continuous carrier so that energy to be provided to it by reader.Electronic tag is after receiving deactivation command, return the reception response to reader, in this reception response, carry time parameter, to inform that reader need send continuous carrier how long, this section period needs to guarantee that electronic tag all wipes all data of inside, and the situation that data have not been wiped can not occur.
Among the embodiment, described electronic tag returns described reception response to described reader, can comprise:
Time parameter in the described reception response of described electronic tag is set to the corresponding value of transmission duration of described continuous carrier.
During concrete enforcement, the value of time parameter should send the duration of continuous carrier corresponding to reader.For example, the time parameter in the described reception response of described electronic tag is set to T=0x00～0xFE; The duration that reader sends continuous carrier is T * 20ms.And for example, this time parameter also can be exactly the duration that reader sends continuous carrier.
Among the embodiment, described reception response can comprise zone bit, random number R N (Random Number), described time parameter and cyclic redundancy check (CRC) code CRC-16.During concrete enforcement, the concrete ingredient that receives response also can arrange according to actual needs, and composition form herein only is an example.
The concrete example that the reception that following table provides electronic tag to return to reader responds:
Among the embodiment, reader can also be taken the time parameter and the time-delay that receive into consideration when sending continuous carrier, and the time-delay here refers to send deactivation command from reader, returns the duration of inactivation treatment success response to electronic tag to reader.For example, described reader can comprise according to the continuous carrier of the time parameter in the described reception response to described electronic tag transmission corresponding duration:
Described reader sends Min (T
REPLY, the continuous carrier of duration of T * 20ms); Wherein, T
REPLYFor sending described deactivation command from described reader, return the duration of inactivation treatment success response to described reader to described electronic tag; T is the value of time parameter in the described reception response.
Fig. 2 is an exemplary plot of electronic tag inactivation treatment.As seen from Figure 2, the deactivation electronic tag, reader should send deactivation command (also can be described as in this example Kill order), if electronic tag monitors the deactivation command of reception when invalid, can ignore this deactivation command; This moment, electronic tag did not have response, and kept current state.If electronic tag monitors the deactivation command of reception when effective, can divide following several situation to handle:
If carry the indication parameter of notice obliterated data in the deactivation command, then return the reception response of carrying time parameter, as above shown in the table, this reception response comprises zone bit (1 bit data 0), RN (handle of electronic tag), time parameter T reach the CRC-16 that calculates to the T stop bit from zone bit; Electronic tag receives reader according to the continuous carrier of the corresponding duration of this time parameter transmission, and obliterated data is also carried out inactivation treatment, can return the deactivation success response during deactivation success; If electronic tag meets with mistake in inactivation treatment, then electronic tag can send error code to reader, and keeps current state;
If do not carry the indication parameter of notice obliterated data in the deactivation command, then carry out inactivation treatment, can return the deactivation success response during deactivation success, do not carry out data erase.
This shows that according to the success or not of electronic tag inactivation treatment, reader can obtain multiple possible outcome:
The deactivation success: after finishing deactivation, electronic tag should be set to inactivated state with self immediately, and no longer reader is responded later on;
Electronic tag runs into mistake: when electronic tag meets with mistake in inactivation treatment, then electronic tag can send error code to reader;
Deactivation is success: electronic tag can return response to reader in deactivation success back, if reader fail in the time of agreement, to receive response, can determine that then deactivation does not complete successfully.Reader can send Req_RN (random number is obtained) order (handle that comprises this electronic tag) and verify whether this electronic tag still is in the radio frequency electromagnetic field of this reader, and can start inactivation treatment again.
Among the embodiment, described electronic tag carries out according to described deactivation command can also comprising after the inactivation treatment:
Described electronic tag returns the deactivation response to described reader, and time parameter is carried in described deactivation response;
Described reader determines according to the time parameter in the described deactivation response whether described electronic tag has wiped total data and successful deactivation.
Like this, electronic tag is by returning above-mentioned deactivation response to reader, reader can determine whether electronic tag has wiped total data and successful deactivation according to the time parameter in the deactivation response, can guarantee that like this electronic tag has not had remaining data to be present in the non-volatility memorizer when deactivation, promote the tag security energy; After reader determined whether electronic tag has wiped total data and successful deactivation, reader no longer sent continuous carrier.
During concrete enforcement, described electronic tag returns described deactivation response to described reader, can comprise: the time parameter in the described deactivation response of described electronic tag is set to designated value, and described designated value is used to indicate described electronic tag and whether has wiped total data and successful deactivation.
For example, the time parameter in the described deactivation response of described electronic tag is set to 0xFF, has wiped total data and successful deactivation to indicate described electronic tag; Like this, after reader receives deactivation response, be set to 0xFF if determine the time parameter in the deactivation response, then reader can determine that electronic tag wiped total data and successful deactivation.
During concrete enforcement, except comprising above-mentioned time parameter, can also comprise information such as zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16 in the deactivation response.The concrete example that the deactivation that following table provides electronic tag to return to reader responds:
Based on same inventive concept, a kind of reader, ultra-high-frequency passive electronic tag and radio-frequency recognition system are also provided in the embodiment of the invention, as described in the following examples.Because the principle of these device solves problems is similar to ultra-high-frequency passive electronic tag ablation method, so the enforcement of these devices can repeat part and repeat no more referring to the enforcement of ultra-high-frequency passive electronic tag ablation method.
As shown in Figure 3, the reader in the embodiment of the invention can comprise:
First sending module 302 is used for sending described deactivation command when the life cycle of ultra-high-frequency passive electronic tag finishes;
Among the embodiment, the time parameter in the described reception response is set to the corresponding value of transmission duration of described continuous carrier.
Among the embodiment, the time parameter in the described reception response is set to 0x00～0xFE.
Among the embodiment, described reception response also comprises zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16.
Among the embodiment, described second sending module 304 specifically can be used for:
Send Min (T
REPLY, the continuous carrier of duration of T * 20ms); Wherein, T
REPLYFor from sending described deactivation command, return the duration of inactivation treatment success response to described electronic tag; T is the value of time parameter in the described reception response.
Among the embodiment, above-mentioned reader can also comprise:
Second receiver module is used for receiving the deactivation response that described electronic tag returns, and time parameter is carried in described deactivation response;
Determination module is used for determining according to the time parameter of described deactivation response whether described electronic tag has wiped total data and successful deactivation.
Among the embodiment, the time parameter in the described deactivation response can be set to designated value, and described designated value is used to indicate described electronic tag and whether has wiped total data and successful deactivation.
Among the embodiment, described determination module specifically can be used for:
When the time parameter in described deactivation response is set to 0xFF, determine that described electronic tag wiped total data and successful deactivation.
Among the embodiment, described deactivation response can also comprise zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16.
As shown in Figure 4, the ultra-high-frequency passive electronic tag in the embodiment of the invention can comprise:
First sending module 402 is used for returning the reception response to described reader, and time parameter is carried in described reception response;
Wipe module 404, be used for according to described indication parameter obliterated data;
Among the embodiment, described first sending module 402 specifically can be used for: the time parameter of described reception response is set to the corresponding value of transmission duration of described continuous carrier.
Among the embodiment, described first sending module 402 specifically can be used for: the time parameter of described reception response is set to 0x00～0xFE.
Among the embodiment, described first sending module 402 can also be used for: in described reception response zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16 are set.
Among the embodiment, described second receiver module 403 specifically can be used for:
Receive Min (T
REPLY, the continuous carrier of duration of T * 20ms); Wherein, T
REPLYFor sending described deactivation command from described reader, to the duration that returns the inactivation treatment success response to described reader; T is the value of time parameter in the described reception response.
Among the embodiment, above-mentioned electronic tag can also comprise:
Second sending module is used for returning the deactivation response to described reader, and time parameter is carried in described deactivation response, so that described reader determines according to the time parameter in the described deactivation response whether described electronic tag has wiped total data and successful deactivation.
Among the embodiment, described second sending module specifically can be used for: the time parameter of described deactivation response is set to designated value, and described designated value is used to indicate described electronic tag and whether has wiped total data and successful deactivation.
Among the embodiment, described second sending module specifically can be used for: the time parameter of described deactivation response is set to 0xFF, has wiped total data and successful deactivation to indicate described electronic tag.
Among the embodiment, described second sending module can also be used for: in described deactivation response zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16 are set.
As shown in Figure 5, the radio-frequency recognition system in the embodiment of the invention can comprise:
Described electronic tag 502 is used for after receiving described deactivation command, returns to described reader 501 and receives response, and time parameter is carried in described reception response;
Described reader 501 also is used for after receiving described reception response, sends the continuous carrier of corresponding duration to described electronic tag 502 according to the time parameter in the described reception response;
Described electronic tag 502 also is used for receiving described continuous carrier, according to described indication parameter obliterated data; Described electronic tag carries out inactivation treatment according to described deactivation command.
Among the embodiment, described electronic tag can also be used for returning the deactivation response to described reader, and time parameter is carried in described deactivation response;
Described reader can also be used for determining according to the time parameter of described deactivation response whether described electronic tag has wiped total data and successful deactivation.
In sum, in the embodiment of the invention, the ultra-high-frequency passive electronic tag receives the deactivation command that reader sends when life cycle finishes, and described deactivation command is carried the indication parameter of notice obliterated data; Described electronic tag is according to described indication parameter obliterated data; Described electronic tag carries out inactivation treatment according to described deactivation command; After can making the electronic tag deactivation, the data in the electronic tag are not present in the non-volatility memorizer because being wiped free of, thereby the potential safety hazard of stopping promotes the security performance of electronic tag significantly.Described electronic tag returns the reception response to described reader after receiving described deactivation command, time parameter is carried in described reception response; Described reader sends the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after receiving described reception response; Described electronic tag receives described continuous carrier, and the line data of going forward side by side is wiped; Like this, consult the transmission duration of continuous carrier by reader and electronic tag, can guarantee that electronic tag all wipes all data of inside, further promote the security performance of electronic tag.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software embodiment or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to process flow diagram and/or the block scheme of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block scheme and/or square frame and process flow diagram and/or the block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computing machine or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame.
These computer program instructions also can be loaded on computing machine or other programmable data processing device, make and carry out the sequence of operations step producing computer implemented processing at computing machine or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame in the instruction that computing machine or other programmable devices are carried out.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (29)
1. ultra-high-frequency passive electronic tag ablation method is characterized in that this method comprises:
The ultra-high-frequency passive electronic tag receives the deactivation command that reader sends when life cycle finishes, return to described reader and receive response, and wherein, described deactivation command is carried the indication parameter of notice obliterated data, and time parameter is carried in described reception response;
Described reader sends the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after receiving described reception response;
Described electronic tag receives described continuous carrier, according to described indication parameter obliterated data;
Described electronic tag carries out inactivation treatment according to described deactivation command.
2. the method for claim 1 is characterized in that, described electronic tag returns described reception response to described reader, comprising:
Time parameter in the described reception response of described electronic tag is set to the corresponding value of transmission duration of described continuous carrier.
3. method as claimed in claim 2 is characterized in that, the time parameter in the described reception response of described electronic tag is set to the corresponding value of transmission duration of described continuous carrier, comprising:
Time parameter in the described reception response of described electronic tag is set to 0x00～0xFE.
4. the method for claim 1 is characterized in that, described reception response also comprises zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16.
5. the method for claim 1 is characterized in that, described reader comprises according to the continuous carrier of the time parameter in the described reception response to described electronic tag transmission corresponding duration:
Described reader sends Min (T
REPLY, the continuous carrier of duration of T * 20ms); Wherein, T
REPLYFor sending described deactivation command from described reader, return the duration of inactivation treatment success response to described reader to described electronic tag; T is the value of time parameter in the described reception response.
6. the method for claim 1 is characterized in that, described electronic tag carries out according to described deactivation command also comprising after the inactivation treatment:
Described electronic tag returns the deactivation response to described reader, and time parameter is carried in described deactivation response;
Described reader determines according to the time parameter in the described deactivation response whether described electronic tag has wiped total data and successful deactivation.
7. method as claimed in claim 6 is characterized in that, described electronic tag returns described deactivation response to described reader, comprising:
Time parameter in the described deactivation response of described electronic tag is set to designated value, and described designated value is used to indicate described electronic tag and whether has wiped total data and successful deactivation.
8. method as claimed in claim 7 is characterized in that, the time parameter in the described deactivation response of described electronic tag is set to described designated value, comprising:
Time parameter in the described deactivation response of described electronic tag is set to 0xFF, has wiped total data and successful deactivation to indicate described electronic tag;
Described reader determines that according to the time parameter in the described deactivation response whether described electronic tag has wiped total data and successful deactivation, comprising:
If the time parameter in the described deactivation response is set to 0xFF, described reader determines that described electronic tag wiped total data and successful deactivation.
9. method as claimed in claim 6 is characterized in that, described deactivation response also comprises zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16.
10. a reader device is characterized in that, comprising:
Generation module is used for generating deactivation command, and described deactivation command is carried the indication parameter of notice obliterated data;
First sending module is used for sending described deactivation command when the life cycle of ultra-high-frequency passive electronic tag finishes;
First receiver module is used for receiving the reception response that described electronic tag returns, and time parameter is carried in described reception response;
Second sending module is used for sending the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after described receiver module receives described reception response.
11. reader device as claimed in claim 10 is characterized in that, the time parameter in the described reception response is set to the corresponding value of transmission duration of described continuous carrier.
12. reader device as claimed in claim 11 is characterized in that, the time parameter in the described reception response is set to 0x00～0xFE.
13. reader device as claimed in claim 10 is characterized in that, described reception response also comprises zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16.
14. reader device as claimed in claim 10 is characterized in that, described second sending module specifically is used for:
Send Min (T
REPLY, the continuous carrier of duration of T * 20ms); Wherein, T
REPLYFor from sending described deactivation command, return the duration of inactivation treatment success response to described electronic tag; T is the value of time parameter in the described reception response.
15. reader device as claimed in claim 10 is characterized in that, also comprises:
Second receiver module is used for receiving the deactivation response that described electronic tag returns, and time parameter is carried in described deactivation response;
Determination module is used for determining according to the time parameter of described deactivation response whether described electronic tag has wiped total data and successful deactivation.
16. reader device as claimed in claim 15 is characterized in that, the time parameter in the described deactivation response is set to designated value, and described designated value is used to indicate described electronic tag and whether has wiped total data and successful deactivation.
17. reader device as claimed in claim 16 is characterized in that, described determination module specifically is used for:
When the time parameter in described deactivation response is set to 0xFF, determine that described electronic tag wiped total data and successful deactivation.
18. reader device as claimed in claim 15 is characterized in that, described deactivation response also comprises zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16.
19. a ultra-high-frequency passive electronic label device is characterized in that, comprising:
First receiver module is used for receiving the deactivation command that reader sends when life cycle finishes, and described deactivation command is carried the indication parameter of notice obliterated data;
First sending module is used for returning the reception response to described reader, and time parameter is carried in described reception response;
Second receiver module is used for receiving described reader according to the time parameter of described reception response, the continuous carrier of the corresponding duration of transmission;
Wipe module, be used for according to described indication parameter obliterated data;
The deactivation module is used for carrying out inactivation treatment according to described deactivation command.
20. electronic label device as claimed in claim 19 is characterized in that, described first sending module specifically is used for: the time parameter of described reception response is set to the corresponding value of transmission duration of described continuous carrier.
21. electronic label device as claimed in claim 20 is characterized in that, described first sending module specifically is used for: the time parameter of described reception response is set to 0x00～0xFE.
22. electronic label device as claimed in claim 19 is characterized in that, described first sending module also is used for: in described reception response zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16 are set.
23. electronic label device as claimed in claim 19 is characterized in that, described second receiver module specifically is used for:
Receive Min (T
REPLY, the continuous carrier of duration of T * 20ms); Wherein, T
REPLYFor sending described deactivation command from described reader, to the duration that returns the inactivation treatment success response to described reader; T is the value of time parameter in the described reception response.
24. electronic label device as claimed in claim 19 is characterized in that, also comprises:
Second sending module is used for returning the deactivation response to described reader, and time parameter is carried in described deactivation response, so that described reader determines according to the time parameter in the described deactivation response whether described electronic tag has wiped total data and successful deactivation.
25. electronic label device as claimed in claim 24, it is characterized in that, described second sending module specifically is used for: the time parameter of described deactivation response is set to designated value, and described designated value is used to indicate described electronic tag and whether has wiped total data and successful deactivation.
26. electronic label device as claimed in claim 25 is characterized in that, described second sending module specifically is used for: the time parameter of described deactivation response is set to 0xFF, has wiped total data and successful deactivation to indicate described electronic tag.
27. electronic label device as claimed in claim 24 is characterized in that, described second sending module also is used for: in described deactivation response zone bit, random number R N and cyclic redundancy check (CRC) code CRC-16 are set.
28. a radio-frequency recognition system is characterized in that, comprising:
Reader is used for sending deactivation command to described electronic tag when the life cycle of ultra-high-frequency passive electronic tag finishes, and described deactivation command is carried the indication parameter of notice obliterated data;
Described electronic tag is used for after receiving described deactivation command, returns to described reader and receives response, and time parameter is carried in described reception response;
Described reader also is used for sending the continuous carrier of corresponding duration to described electronic tag according to the time parameter in the described reception response after receiving described reception response;
Described electronic tag also is used for receiving described continuous carrier, according to described indication parameter obliterated data; Described electronic tag carries out inactivation treatment according to described deactivation command.
29. system as claimed in claim 28 is characterized in that, described electronic tag also is used for returning the deactivation response to described reader, and time parameter is carried in described deactivation response;
Described reader also is used for determining according to the time parameter of described deactivation response whether described electronic tag has wiped total data and successful deactivation.
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| CN1265215A (en) * | 1997-07-25 | 2000-08-30 | 检验点系统有限公司 | Electrically, physically or virtually reactivating RFID tags |
| EP1538556A1 (en) * | 2003-12-02 | 2005-06-08 | Shalom Wertsberger | Radio frequency identification tags |
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| FR2863745B1 (en) * | 2003-12-16 | 2006-06-30 | St Microelectronics Sa | MEMORY FOR RFID LABELS ADAPTED TO RECEIVE AN OFFSET COMMAND |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265215A (en) * | 1997-07-25 | 2000-08-30 | 检验点系统有限公司 | Electrically, physically or virtually reactivating RFID tags |
| EP1538556A1 (en) * | 2003-12-02 | 2005-06-08 | Shalom Wertsberger | Radio frequency identification tags |
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